C Programming - Declarations and Initializations - Discussion

Void means empty so nothing should get returned, that it must not have any value.

The error is shown as in any variable declaration it is actually an indication to the compiler about the type and size of the variable.

For eg : In the statement int a; the compiler determines that when a will be defined we need to allot 2 bytes to it.

But for avoiding data type it cannot assign determine the type & the size of memory to be allocated. Hence, an error is reported.

Well you can't declare any variable as void, but you can declare pointers as void thats why we are getting error.

When we are declaring a variable we should provide what type it is that int, char, float, double.

From that compiler arrange memory for that variable, bur void is used in function passing values and return value. If fun returns int type data than we provide an int. If fun returns nothing then we provide void. But in the case of a pointer that pointer may be any type it takes the 4 bytes (in GCC) so that whether it is int, char, float, any it takes 4 bytes. So we can use void pointer variable that can typecast to any data according to our requirement.

I think the void variable is a general type if we assign any value to the void data type we must be type cast according to the data which we want to be stored.

Void is not a keyword.

The void is datatype.

The void is data type but its initialize with NULL value so no one can change or assign a value to the null variable.

Void itself is a null value. You cannot declare a null value.

void is a return type, not a data type. Hence we can not use it to declare a variable.